Filling-feeler mechanism for looms



J. NRTHROP t l I .Il .m 1w f I s :I 1 d s.- 2 j wm/ .gg m M n MM v N/ Q w wl ....1 n J @l f J Y- m m n .m um wm. 1mm. um F `uly 12, 1927.

y FILLING FEHLER MEGHANISM FOR Looms uml-- ggg July 12,1921 1,635,858

l J. NO RTHROP FILLING. FEELER MCHANISM FOR LOOMS f Filed m1151711, 1924 2 sheets-sheet 2v Patented Jniy 12E, 19272 FECE.'

JONAS NQRTHROP, OF HGPEDALE. Iv'lASSACHSETTS, ESGNGR- TO HOPEDALE MANU;- FATUILING OMEANY, 0F hill/FEED, MASSACHUSETTS-5, A CORPORATION OF MASSA.-

Application filed July 11. 192e.

'The present invention relnieev io un im provfmeni in filling; 'teeler meehnniaun for looms.

ln the construction illustrated in the Draper fe- Northrop Patent Lili-02H, :i lillinlo' feeler is employed l eving; u illing en gaining movement whieli in ene'ngljement with the vzrrn tends to more lovvzird Ihe huit ot the holihin, und whieh 'o mover: zitter the vorn hns been exhausted to :i preiietermined extent. A controller ir employed which holds the filling-g leeler trom lillinp; feeling movement during par( oi the time the leeler in engzigemei'lt with the vorn. llvfith ai full hol'ihin7 the iillino` engaging meinher euejngeu the ,inrn :1nd il@ pressed 'i'oi'wzird und begins ite forward moveiminl; Ai'tter it ie moved "torivnrd n short dieizinee, the eonl'roller is struck o v the hohhin spring' in the Fhnitle und it beginn ite ilorwurd movement. '.l'his forward movement oi. the controller relen es the. toelev, and the latter then 'tree to ruving toward the butt ot the lii'ihhin, hut eo longr :is luiiieiei'ityarn on the hohhin it if; prevented trom no doingn h v the yurn, During the inst part o the ii'orivnrd n'iovemenl of' the toeter, nseuming the eritienl exhaustion point not to huve been reziehed5 the lntrh lever iengaged hy the welt hnnimef und the iteeler iS therehv prevented from n tendenov to move tovvaird the huit ot' the holiil'iin, herehv relievingij the `vorn of the interni proffen] f ot the feeler therenpninst during` this; port of the iliorvvnrd movement oil the Shuttle.

The forward movement o the Yteeler me v he divided into three portions. During the first portion the eeier in' prevented from movenient hy the eontiioller. As soon :is the controller releases the feeler, the 'ieeler iS under the control of the opi-ingwhich tends to move it, and the yarn, il present, tends to resist Snell movement. This second portion of lle 'forward movement oli the .i'eeleiz The third portion o'l the movement. o'l the teeler oeeurs zitter the Wett hammer luis :idvzineed tur enough to engage zi eine surface on the side ot the lnteh lever7 :ind during); thin lont portion oithe 'forward movenient ol' the teeler it is prevented from 'melting iilling' feeling movement by the weithz'immeny The portions ot the torvfariil moviI 'ientot the filling enenging member timey described Serial No. 725,390.

muy he referred to, the lirst :is that during n'hieh fillingr Yfeelingf movement of the filling;k

engaging member is prevented by the eenu troller, or, ns; it may he Called, :icontroller don'iinnied movement; the second as that hiring whit-zh the Filling feeler is free to make fillingA feeling movement; and the third as ihm' during which the tilling 'feeler is prevented from mnkingv illing feeling movement h v menne of the weft hammer, or, as it muy' he culled. the wett lnimmer dominated unefement. i

it imaheen found by experience with the innetruetion of' the said patent that the en :rug-ement of `the filling; feeling' member with the viirn during the Erst portion of the orvvurd movement of the filling' eeling memlier eontrihntee to the weer and ehsing of the. lllininjcis on every detecting' bezit of the lay, the vorn i2 engaged hv the fillingI eeler duringlhis portion of the 'iorvvurd movement thereof. @ne object of the invention is to elimirnue [hie engagement of the filling feeline4 memher with the uvorn by providing menne meting on the tiret deteetiney heat after repleninlnnent to enteh and hold the filling leeler in retracted poeition until the yarn on the liiohhin exhausted to n `point approxinnitine' eri-tieni exhaustion.

it hue 'lui-ther heen the experienee with the eoind'ruetion of Said potent that" the adjustment oi! the mechanism so that the oem suriziee on the luteh lever -Qhonld operate toA prevent the tendei'iev of the ii lingr 'feeling member to move on the Surface ot the vnrn muss: during: the third portion of the forvrnrd movement ot Snell niemher, is a matter reepiirin;T eonsiderul'ile eure in order to Se` eure theI nieety ot' adjustment required. Another ohjeet of the invention is to provide .menne for preventing the tendency of the filling feeling member to move alongT the of the stroke is the filling teehnig portionrsnrtuee ot the holohin during` the third portion of the 'forward movement ot the illing *fe-elineV member which will not require any :id iuetment.

Other ohjeetfl; ot the invention will he apparent from the following des'eription.

'To the ahove ends the preeent invention eoneitn in the tiliing teeler mechanism hereinu'fter denerilied and pnrtieiihirly defined in the olonne.

in the accompanying drewmgs'illustrat ing the preferred forni ol' the invention, Fig.

l is a plan ot a portion oi the left hand endV ci a loom showing the application of the filling feelcr mechanism of the present vvinvention thereto; Figs. 2 and 3 are plan views of the controller and feeler elements and associated parts in diii'erent positions; and Fig. l is a side elevation of the parts shown in Figs. 2 and 3, looking toward the left ot Fi r. 2.

'ldhe illustrated embodiment ot the invention is described as follows: lThe ley 9 ie supported in the usual manner on the sword for oscillation toward and from the breast beam 11. It is provided in the usual manner with a shuttle. box 12 in which the shuttle 13 comes to rest when properly boxed in position to permit the operation of 'the filling feeling mechanism on the detecting beat of the lay. A longitudinal slot lll is cut in the front wall of the shuttle to permit the filling lfeeling operation. The rock shaft 15 is journaled in suitable bearings on the frontside of ,the breast beam and extends across the loom and is operativelyT connected at the other end of the loom with the Wet'replenishing mechanism. Secured to the roel: shaft 15 and projected upwardly therefrom is an arm 16 to t ie upper end of which is pivoted the rock shaft actuator 18. Thev rock shaft, the arm and the actuator constitute what is hereinafter called the filling supply controllin means, and their function is when the filling in the shuttle has been exhausted to a predetermined extent, that is to say, when there is critical exhaustion of filling, to initiate the operation of the weft replenishing mechanism and thereby to cause the insertion of a fresh supply of lling in the shuttle.

The partsl above enumerated, their actuating mechanism and their mode of operation, to gether with other parts of the loom shown necessary to a disclosure of the present inventioxnare of the usual construction and well known lto those skilled in the srt.

The filling :teeler mechanism of the present invention comprises a filling feeler generally indicated by the reference character 19, a controller 20, and e latch lever 21. The feeler consists of a. teeler lever 22, having a filling engaging member 23 slidingly mounted on .the lever 22. The filling feeling member is pressed rearwardly toward the bobbin 23 by aspring 29. The teeler lever 22 is .ffmounted on a` stationary vertical 'pivot pin 32, rising'from the t'eeler lever plate 33 (see Fig. 3,) secured to a support 34. The support is in the form of a plate provided with a slot by means ci? which it is bolted to the bracket 35 secured to the right hand end of the breast beam 11.

`The above descnfied E,construction is the same as that illustrated and described in the said patent, with the exception that the supressens port 3l is separate from the bracket by which it is attached to the breast beam.

The latch lover 2l is pivolally niouncd at 42 on the rock shaft actuator lh. and a compression spring l-5 normally tends lo turn the latch lever countcr-clocltn'ise. lever is connected with the tcclcr lcvcr by means of a connecting link 4T.

l'n the construction of said patent, the rear end of the latch lever 2l is provided with a cam surface adapted to be engaged by the weft hammer 25. ln the present construction no such cani surface is employed. Otherwise the construction described is the Same and has the same mode ot operation as thecoustruction and modo oit operation hf the same parts of the said patent.

The controller 20 is mounted on the support 34. lt is urged rearwardly by a spring 52. The controller has a stop lug 58. 'l`hc controller and its associated parts in connection with the lilling foeler are the same both in construction and operation as is described in said patent. except that in the present construction it is adapted to engage the 'front 'of the shuttle instead ot the shuttle spring.

The forward end oi the filling `tccler member 23 is provided With a pin 31 which serves the double function of limiting the rcar-` ward movement ot the tilling feeling n1cm ber, and during the third part of thc. forward movement of the latter engaging thc surface 100 of the stop plate 101, and acts to prevent lateral movement of the filling fecler during the time it is in en agement therewith. The forward end ot tiis plate 101 is secured by the screw 102 to the support 34. The plate is provided with a holo "which receives the pin 32 upon which the filling leeler lever is pivoted. By means of the screw 102 and the pin 32, the plate 'le rigidly held in fixed position. The surface 100 against which the pin 3l .is adapted to engage is parallel to the line extending from the pin 32 perpendicularly to the axis ofthe bobbin in the shuttle, and so as the filling feeling member is moved forwardly, it prevents, at the timev described, any lateral The lati-h movement of the filling engagingnd of the filling feeling member on the surface of the bobbin. y

The plate 101 is provided with a pivot pin 103 upon which the lilling leeler holder A104i is pivoted. This filling feeler holder is a bell crank lever having a hook 105 on the rear end ol its rearwardly extending arm, which hook is adaplcd to engage4 thc pin 3l under circumstances presently to be described, and hold the filling feeling member in retracted position. The :forward varm 106 the billing lcclcr holder is connected by a spring l0? to a piu lOS on the ear 50 of the support This sprin normally 'tends to turn the iilling :teeler ho der in the All meente strot lill) is pivotedat lll) to the hat: 53v

atai'holl to the eonti'ollei' lll. The 'forward enil oi' the ti'nt llll is hilnreated and entraine a non-h lll in the forward arm lll of tho fillingr ieol'er holder '104.

The operation oi" the present iilling ifeeler nioehaiiienr in the saine oxi'ept as hereinafter noloil as is the operation ot the eonstrnetion ol' tl .':aicl patent.

When a new hohoin o. a tnll holihin) is inserted in the shuttle. on the lirst detecting' heat thereafter ol the lay, the hohhin (or, Strictly speaking', the `Yarn on the hohbin) engages the lillinglA 'feeling nielnher 2li, as Shown in Fig'. 2, and preseesit Vforwardly a distance such that the pin Sil. passes by the hooi; i043. When the lay moves real'u warclly again. the pin ll engages the hook Aand is prevented from moving rearward heyond a. position which the hook permits. The hook, therefore. operate alter the tiret forward heet of the lav following.; replenish ment to prevent the filling feeling nieniher from moving .rearwanlly. and therefore it' eliminates tie normal tiret portion ol' the (ill forward movement of the tilting' l'eelinilv member, that is to nay, it eliminates the een lroller dominated inmenient ot the filling' feeling niolnher.

ycritical point.

On each detecting heat after the tiret deleitineY heat `tolloivingr replenishment, the i-onti-oller 20 engages the shuttle and ren leones the tilliinr ieeler in the manner oleerrihetl' in said patent, lent at, this; time the filling fleelor has already engaged the yarn on the hobhin and the pin 31 stands opposite the stop plate 101 so that there is no tendency of the filling' feelingr mernher to .move laterally on 'the surface of the hohbin, and so trom the first detecting' heat, until the approximation et illing exhaustion, the filling feeling' member has no tendency to move laterally on the yarn mask, and the weer 0r ,ehating ot'the vorn due to sucio. tendency is eliminated. During this period of opera-- lion the pin 3l is caughtand'helcl ley the hook 105 ol the holder on every beat ot' the lay-on nach forward heat the holder re'- Ioasrwi the fillingY leeler member and on each i'olreat oit the lay the holder ire-engages the pin ."l and prevents its 'fall rearward Inoveinent. When, however, the vorn on the holon hin approximates illing exhaustion, the till.- ino' feeling' memher is not moved forwardly snllieiontly to permit the filling feeler holder to engage the pin El on the end of the filling feeling' member, and thereafter until critical This elimination ol thie portion ot the normal movement, ot the filling' exhaustion is reached, the mechanism operates as described in. said patent.

Havingf thus descrihed the inveiitinnivhat is claimed is: i

l. loom having', in combination, a lay, a xehnttle, a filling eeler nierhanisi'n, a oontlroller, Said illinp; ieeler mechanism romln'ieirngr a 'teeler lever and a filling engaging memher viehline'ly mounted on the lever and pressed toward the shuttle, a filling levier holden and connections between the holder and the controller. the holder cooperatiinr with the filling' engaging member to prevent the latter from following the hoh-` hin lreai'n'arflly after replenishment more I"than a limited (lietanee, so that the-yielding Inoven'ient of the filling engaging meinher is limited nntil critical exhaustion is approximated, whereupon the filling 'leeler holder reason to restrain the movements ot the tllling' engaging' member.

2. A loom having'` in Combination. a lay, a shuttle. filling feelin' mechanism Compris* ing 'a filling feeler eoneiating of a, feeler lever and a filling engaging member yieldinglv mounted on the 'eeler lever and pressed toward the ehnttle. ay filling eeler hoh-ler noting on'the first detecting; heat following replenislnnent to engage and hold the filling feeler in retracted position until 95 f'ritieal esrhanstimiV if; approximated, means tor preventing filling' leeling movement of the leeler during the time the filling t'eeler holder iss in operation, and a controller arranged to be engaged b v the shuttle, ronneetions between the controller and the tilling ieeler holder to operate the latter to re lease the fillingV engaging member on Pachdoterting' heat. o? the lay.

3. A loom having'. in Combination. a lay, a. Shuttle.' filling t'eeler mechanism Comprisingr a filling' 'teeler eoneisting ot a. freeler lever and a filling engaging member yieldingly mounted on the feeler lever and pressed toward the shuttle, a filling' tee'ler holder cooperatingr with the fillingr engagingr member to Catch and prevent the tillin j feeler member trom forward movement h yond predetermined limited movement, on each beat of the lav after the first heat following replenishment until critical exhaustion is approximated. a eontroller, and connections between the eontroller and the holder operating to release the holder upon oooh heat of the ley.,

4. A loom having/S, in vomhination, a lay, a Shuttle. fillinp lieel'er nieehaniem Compris-f ing' a filling toeter correlating of e, vteeler lever and filling' engaging: member yieldingly mounted on the 'eeler lever and pressed toward ,the shuttle provided with a ein, a feeler holder provided with a hook for catching; the vpin,y a controller` eonnec tions between the controller and the 'feeler holder for withdrawing the holder at the,

llav

end of each forward beat of the lay, and a fixed stop for engaging the pin on lie filling feeler member and holding; ille filling` feeler lever from turing" movement until Critical 5 exhaustion of the filling;r is approximated.

A loom hzivingrq in combination, :i lay, a shuttle, filling 'Feelmmeclinnisin comprising n pivoted filling' eelei lever having a iilling engaging member yieldingly i'nonntrl on the feelei leven n lioldoi for engaging the filling' feelci member prevenlingr more than a limited forward movement of the lat- Leases@ loi' upon @zich sli'oko of the lily allor llie first benlfollowingr repleniglnnent, Connections between i'lio controller :unl ilie filling eelei lever foi' ioliuising ille lover foiswingingg Inovonnnie upon oni'li lient of tlio lay, :mil a .Klop coniiii'nnvn for preventingy Snell ,mvinging nimmnenl oll ilw 'fooloi' level' until nppioxinmie exl'ninstion of ilie-lioliliin.

ln teniilnony wlioi'eol' l lmve Signed my nume lo this specification.

Toms NoRTnRoP. 

